Versions of the Boeing 737 have been flying since 1967, and this popular single aisle airliner is still going strong today. It is the most produced commercial jetliner.

Newer Boeing 737 aircraft incorporate winglets for improved economy, an enhanced accuracy global positioning system, a Head Up Display similar to military aircraft, and a Vertical Situation Display that automatically gives pilots situational awareness of the terrain in their flight path shown in a graphic display. The addition of the Head Up Display lessens aircraft down time due to reduced visibility conditions, allowing the pilot to continually scan out of the windshield rather than having to glance down to monitor instruments.

Various Boeing 737 models from Rauch-Airliner.com. have a wingspan and length of 70 in., a wingspan of 70 in. and length of 75 in., a wingspan of 71 in. and length of 82 in., and a wingspan of 71 in. and length of 90 in. Power can come from two each of .40 two cycle engines, 5 1/2 lb. thrust turbines, or 85 mm EDF units.